police first interviewed him just five days after kevin collins disappeared back in 1984. >> i am convinced that the investigation is going in the right direction. >> last week police dug up the concrete floor of this suspect just a few feet from where kevin collins was last seen. >>> authorities rescued a young boy held captive for almost a week. one explosive device was inside the bunker and the other was in a plastic pipe that negotiators were using to communicate with the suspect jimmy lee dykes. authorities used a camera to monitor the inside of the bunker and they went inside when they saw jimmy lee dykes with a gun. he was killed in a fire fight. >>> they may soon require landlords to seismically retrofit buildings and those are buildings where the structures sit on top of the garage. there are 3,000 all over san francisco. now under this proposal, at least three stories high, they will have to happen until 2020 to update them. if they don't, the city may impose heavy fines and post signs saying, the buildings violate the earthquake's safety codes. >>> back over to sal, you are keepi